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Food and Food Forests for Southwest Gardens a Residential and Small Farm Approach the Problem: Food Insecurity

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Food and Food Forests for Southwest Gardens a Residential and Small Farm Approach the Problem: Food Insecurity Food and Food Forests for Southwest Gardens A Residential and Small Farm Approach The Problem: Food Insecurity Modern and even organic farming practices destroy the soil 18 to 80 times faster than natural soil formation rate (Jeavons 2005). In fact, leading scientists suggest that only 40 to 80 years of top soil remain world wide (UN Report 2000). History told, the fall of every great civilization was often marked by their failure to take care of their soils (Berry 2002) Introduction Literature Review Analysis Design Conclusions The Problem: Food Insecurity Much of the problem is scale. • Groundwater withdrawal exceeds recharge in most cases. • 1.75 billion tons of soil are lost annually to erosion. Much of the problem is cultural-based • Farmers account for less than 1% of our population. • Factory farming and factory food (fast food) has created an obesogenic nation, 75 billion in medical expenditures to taxpayers. • 26% of the edible food wasted at consumer level 7.3 units of (primarily) fossil energy are consumed for every unit of food energy produced. Introduction Literature Review Analysis Design Conclusions Promise of Alternatives Small scale farming and sustainable farming can have the following benefits: • May use 10% of the water consumed in conventional agriculture. • Produce 4 to 8 times more food per area. • Improve soil formation rates 10 times more than in nature. • Mitigates or reverses soil erosion • Focuses on local and diverse economies and food distribution systems. • Reduces energy consumption and fossil fuel use. Introduction Literature Review Analysis Design Conclusions Promise of Alternatives • In 2006, 53% (by value) of Russia’s total agricultural output came from household plots accounting for 2.9% of agricultural land. • Accounting for nearly all of 90% of potato production and 70% of vegetable production. • One difference is that Russians spend on average 17 hours a week gardening, while Americans spend 32 hours a week watching TV. Source: Sharashkin, Leonid. “The Socioeconomic and Cultural Significance of Food Gardening in the Vladimir Region of Russia.” 2008. Introduction Literature Review Analysis Design Conclusions Philosophical Framework According to Wendell Berry, at the right scale, small scale, farms were and still are enjoyable places to live. In fact, some cultures were so successful at small scale farming that researchers found that they spent nearly half the year in festivity (Chayanov 1986). Introduction Literature Review Analysis Design Conclusions The Research Question How can design make food more sustainable and accessible to our local community? Introduction Literature Review Analysis Design Conclusions Literature Review Sustainable Food Local Ecology Sustainable Systems: Approach Strategies and Tactics Introduction Literature Review Analysis Design Conclusions Sustainable Design 1. Permaculture Design Principles Permaculture principles highlight the need for functional and beneficial relationships of all elements in the design. 2. Edible Forest Garden Design Process Edible forest garden design will bridge the gap from permaculture principles to implementable plans. Introduction Literature Review Analysis Design Conclusions Design Approach Goal Articulation Base Mapping: Analyze and Assess Site: Design Concept: Grading Sector Analysis Vision Statement Sketches Schematic Design: Detail Design: Patch Design Implementation & Zonation Infrastructure Vegetation Evaluation Scale Ecology architecture, dynamics Bubble-e Residential Principals ansd social structures Introduction Literature Review Analysis Design Conclusions Local Ecology 1. Foodsheds and watersheds Multiple scales of food production increase resiliency 2. Regional ecology Organized in the language used in edible forest garden concepts: vegetation architecture, vegetation dynamics, and social structure. Introduction Literature Review Analysis Design Conclusions Guild Architecture: The Mesquite Nurse Plant Qualities 1. Nitrogen fixation 2. Microclimate 3. Hyraulic Lift (Sowell 2001) During day, shallow soil drys Introduction Literature Review Analysis Design Conclusions Guild Architecture: The Mesquite Nurse Plant Qualities 1. Nitrogen fixation 2. Microclimate 3. Hyraulic Lift (Sowell 2001) By night, hydraulic lift of water from deep to shallow soil and water exudation tend to moisten the soil Introduction Literature Review Analysis Design Conclusions The Mesquite Guild Date Palm Mesquite Peach Elderberry Wolfberry Herb ground Cover Hackberry Moringa Jojoba Mesquite Hackberry Jujube Wolfberry Chiltepine Apple Cactus Opuntia spp. Nopal Tomato, Pepper Guava Citrus A possible native food forest guild A higher water use food forest guild Introduction Literature Review Analysis Design Conclusions Sustainable Systems 1. Water and production efficient gardening systems Small scale systems, larger scale systems 2. Food forest concepts Vegetation architecture, vegetation dynamics, and social structure. Introduction Literature Review Analysis Design Conclusions Elements of the Food Forest Architecture Plant Selection Water Guilds Introduction Literature Review Analysis Design Conclusions Living Habits and Soil Fertility Introduction Literature Review Analysis Design Conclusions Active and Passive Water Storage Introduction Literature Review Analysis Design Conclusions Active and Passive Water Storage Introduction Literature Review Analysis Design Conclusions Integrating Elements Plant Location & Ecology Introduction Literature Review Analysis Design Conclusions Case Review 1. Greening the Desert, Jordan 2. 2,000 year old food forest, Morocco 3. Traditional Mexican Garden, Tucson 4. Zvishavane Water Resources Project 5. Food production in Russia Introduction Literature Review Analysis Design Conclusions Greening the Desert Location: Jordan, 5 miles from the Dead Sea Annual rainfall: 4 to 6 inches Site conditions: highly saline soils, unproductive agricultural land Regional conditions: one of the most water deprived countries in the world, only 41,000 gallons per capita per year. (compare to 62,000g per capita in Tucson) Introduction Literature Review Analysis Design Conclusions Greening the Desert Greening the Desert The same Greening the desert The site a few principles applied site in 2000 during years after the on a Jordanian construction. initial design and residence. implementation. Introduction Literature Review Analysis Design Conclusions Greening the Desert Results: Crop yields with respect to water ef- ficiency was high. 13.3 ton/ha Used a 1/5 of the water convention- al agriculture would have used. Drastic soil improvement Methods: Permaculture design Rainwater harvesting 10 swales on 10 acres harvest every drop Greywater of water to support a forest of legumes Animals and fruit trees. Food forest and ecology Source: Ayesh, Mohammed. Use of permaculture for holistic water resources management under salinity and drought conditions. Introduction Literature Review Analysis Design Conclusions Site A: Site Analysis Goal: design a productive permaculture landscape at the small farm scale ences / Mtn Vi esid ews R s Wind ter in W ea C r ity A al V ti ie n w e s id s e R / t e e S r a t n S t a C r u z T r a i H l o t S u S m h m e e in e r a W R t / F ind s lo s nd w Wi S n o Monsoo urc es Sector diagram developed from GIS analysis, neighbor & staff testimonials, onsite observation, and general knowledge of region. Introduction Literature Review Analysis Design Conclusions Water Systems as Guilds 2 1 2 Watering Systems (in order of use priority) 1 Active and passive rain water 2 Greywater 3 2 3 Municipal Water Introduction Literature Review Method Design Conclusions Water Systems as Guilds Infiltrator Mulch Basin Water Distribution Introduction Literature Review Method Design Conclusions Plants: Vegetation Architecture Genus Species Common Name Family Native to Successional Stage HeigtxWidth Form Habit/Root Habit Light Soil Moisture Fertility Plant Flower Time Edible? Medicinal? (part) Grdcvr Wildlife Growth Type Notes Ceratonia siliqua carob fabaceae mediteranean Climax 30x30 E tree Deep, adaptable Full to part Fairly salt tolerant MW No Pods Yes No Moderate Edible Nitrogen Fixer, Prone to Waterlogging Moringa oleifera Miracle tree moringaceae subtropic to tropic Climax 30x20 bush/small tree Deep Full to part dry, sandy to heavy clay, acid MW No Leaves, Seeds Yes No Edible Considered vegetable tree Olea europea olive mediteranean Climax 25x25 E tree Shallow, Runner Full Dry, rocky, well-drained MW Yes Fruit No Edible Passiflora foetida passion vine passifloraceae baja california hot, rocky, sandy 10' sprawl Vine Shallow reflected to part MW Yes Fruit Yes Edible Simmondsia chinensis jojoba simmondaceae Sonoran Desert Climax 6x5 E shrub Shallow full to part Native, sandy to rocky LW Yes Nuts No moderate Edible Capsicum annum chiltepine Sonoran Desert Climax 3x3 D shrub Shallow, Fertile Partial shade Fertile MW Yes Fruits No Edible Lycium fremontii wolfberry Sonoran Desert Any 3x5 D shrub Shallow Partial shade Native, sandy to rocky LW Yes Berries D Shrub birds moderate Edible Sambucus mexicana Mexican elderberry caprifoliaceae Arizona Any 10-20x8-20 D shrub Deep fertile full to part Native, sandy to rocky MW No Berries No fast Edible water couple weeks or months depending on microclimate Agave spp. agave Arizona Any 3x3 Succulent Shallow, Dry full Dry, rocky LW Yes slow Edible Carissa macrocarpa natal plum apocynaceae South africa Climax 5x5 E shrub Shallow full MW No Fruit Citrus limon Lemon unknown Climax 15x15 E shrub Shallow
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